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Arterial aneurysm stent at intracranial bifurcation

An aneurysm and bifurcation technology, applied in the field of medical devices, can solve the problems of wide range of blood vessels, thromboembolism complications, complicated operation methods, etc., and achieve the effect of convenient delivery of coils and good radial support force

Pending Publication Date: 2018-11-13
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This operation method is complicated, and it has a wide range of effects on blood vessels during the operation, which is likely to cause thrombosis and new embolism complications

Method used

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  • Arterial aneurysm stent at intracranial bifurcation
  • Arterial aneurysm stent at intracranial bifurcation
  • Arterial aneurysm stent at intracranial bifurcation

Examples

Experimental program
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Effect test

Embodiment

[0033] Aneurysm stent at intracranial bifurcation, its structure is as Figure 2-3 As shown, it includes a bracket main body 1 , a blocking part 2 , a connecting rod 3 and a developing point 4 . The stent main body 1 is a self-expanding mesh structure, the plugging part 2 is flared, and the developing point 4 is a platinum cylinder. The grid of the main body 1 of the stent adopts a sinusoidal curve, which has a better radial support force, so that the stent is better positioned in the blood vessel when it is released. The main body 1 of the stent and the blocking part 2 are connected by four connecting rods 3, which well avoids the impact on the blood flow in the blood vessels on both sides of the intracranial bifurcation when the stent is implanted. The expansion angle of the plugging part 2 is between 0°-179° to match different shapes of aneurysms, such as Figure 4 As shown, a round hole with a diameter of 1-3 mm is provided at the bottom of the blocking part 2 to connect...

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Abstract

The invention relates to an arterial aneurysm stent at an intracranial bifurcation. The arterial aneurysm stent comprises a stent body, a blocking part, a connecting rod and developing points, whereinthe sent body is net-shaped, the blocking part is flared, the stent body is connected with the blocking part through the connecting rod, and the developing points are distributed at the tail of the near end of the stent body and the far end of the blocking part. Compared with the prior art, the arterial aneurysm stent at the intracranial bifurcation has the advantages that the closure of an arterial aneurysm at the intracranial bifurcation is better solved, and the effectiveness and safety of the treatment are improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an aneurysm stent at an intracranial bifurcation. Background technique [0002] Intracranial aneurysms are mostly abnormal bulges that occur on the walls of intracranial arteries, and are the number one cause of subarachnoid hemorrhage. In cerebrovascular accidents, they rank second only to cerebral thrombosis and hypertensive cerebral hemorrhage. three. It can occur at any age, and mostly occurs in middle-aged and elderly women aged 40 to 60. The etiology of intracranial aneurysms is still unclear. Most scholars believe that intracranial aneurysms are caused by local congenital defects in the intracranial artery wall and increased intracavitary pressure. Hypertension, cerebral arteriosclerosis, vasculitis It is related to the occurrence and development of aneurysms. At present, the treatment methods for intracranial aneurysms are mainly divided into surgical clipping and endova...

Claims

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Application Information

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IPC IPC(8): A61F2/82A61B17/12
CPCA61B17/12031A61B17/12113A61B17/1214A61B17/1215A61F2/82A61F2002/823
Inventor 黄嘉平刘晓杰张伟东魏文卿郭雪可玄雪婷崔海坡程千莉王阳张春晓
Owner UNIV OF SHANGHAI FOR SCI & TECH
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